Abstract: In a bobbin winding machine with plural winding stations (13), a bobbin transport system for conveying bobbins to be unwound to and from the winding stations comprises a feed track (10), an oppositely located removal track (14) and plural transverse transport tracks (16) extending therebetween through an unwinding position (17) of an associated winding station. The winding station (13) has a positioning element (18), which positions and holds a transport element (11) with a spinning bobbin (12) in the unwinding position and releases it after unwinding. A device (31), preferably combined as an integral unit with the positioning element (18), is additionally associated with each transverse transport track to limit the capacity of the transverse transport track to accept only a single transport element (11) between the positioning element (18) and the removal track (14).

Abstract: A suction arrangement for a device for repositioning the reserve winding typically found on cops from a ring spinning machine to prepare the cops for rewinding into larger yarn packages at a bobbin-winding machine. The suction device is connected to a central supply of suction air to aspirate and hold the yarn end until it is re-deposited on the cop, and includes an air flow restrictor plate movable among multiple positions for selectively obstructing the suction air flow to apply respectively different suction forces to the yarn end based on predetermined parameters of the yarn, the cop preparation operation, or the particular winding operation.

Abstract: A method and apparatus for moving individual yarn ends into a yarn disposition at a yarn end joining device in a winding station of a bobbin winding machine includes moving individual in succession a yarn end from a delivery bobbin to the yarn end joining device, and a yarn end from a take-up bobbin to the yarn end joining device by a single yarn manipulator device.

Abstract: A method and apparatus for producing an end winding on a bobbin on which yarn has been wound. The bobbin is wound in an unwinding direction while the trailing yarn end is engaged and a length of yarn is unwound from the bobbin by suction. The yarn is released from the suction once a length of yarn has been unwound from the bobbin, the released unwound yarn falls onto a yarn support member to be supported at a location at substantially the level of the upper end of the bobbin. The bobbin is then further rotated in the unwinding direction to wind the unwound yarn length into an end winding on the upper end of the bobbin. The yarn support member includes a pair of oppositely sloping transverse surfaces spaced lengthwise of the yarn from one another to define a receiving slot therebetween and a yarn guiding eye is disposed beneath and in communication with the receiving slot for supporting the unwound yarn length during winding of the end winding.